Question about 1991 Suzuki GSF 250 Bandit

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91 250 Bandit clutch/gearbox probs?

Hi all, just bought my bandit, and realised the clutch was slipping. Decided to get a local bike mechanic to look at it and he replaced the clutch. The problem persists, with the mechanic not wanting to know about it.
It does it real bad when cold, (slips) but as it warms up its not so bad. When its warm, it only slips when it comes onto power at around 7000rpm and when I really give it the gas. If I accelerate mildly is doesn't happen and goes good. Is this the clutch still playing up or a box problem?

Thanks

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  • 2 more comments 
  • ben_r84 May 23, 2009

    I'm using Motul oil that is about 100 km old. there isnt much free play on the lever and it doesnt make any difference when I adjust it( gearbox end as there is no adjustment on the lever end left)

  • ben_r84 May 23, 2009

    It's a premium grade engine oil designed specifically for bike engines. Probably the best stuff we can get down here in aus.

  • ben_r84 May 24, 2009

    I'll give that a go and let you know. Thanks for your help.

  • Anonymous Mar 22, 2014

    Bike jerks under acceleration and seems to have gotten worse. accelerates normally in between slipping/jerking.

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  • Suzuki Master
  • 3,433 Answers

Keep in mind that a wet clutch requires special oil and adequate free play to make sure the clutch is fully engaged. Chk both. Regular engine oil wreaks havoc on wet clutches. good luck

Posted on May 23, 2009

  • Ned C Cook
    Ned C Cook May 23, 2009

    I am not familiar with the oil you have mentioned. The important thing is that it is not regular motor oil..

  • Ned C Cook
    Ned C Cook May 23, 2009

    Ok, being sure of the oil and its compatability with wet clutches., We are back to the free play, or internal adjustment of the clutch rod. to pressure plate clearance. Can you disconnect the clutch cable at the engine ? Do that and observe the lever it was attached. The lever will not reach the cable if there was tension , keeping the clutch from fully engagingIf you can't put the cable back on without forcing the lever to the cable. Theres you problem. you need a longer cable. Good Luck and I'll hang in there with you until it is solved.

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